Back to Search
Start Over
Stellar (n,gamma) cross section of 62Ni.
- Source :
-
Physical review letters [Phys Rev Lett] 2005 Mar 11; Vol. 94 (9), pp. 092504. Date of Electronic Publication: 2005 Mar 11. - Publication Year :
- 2005
-
Abstract
- The 62Ni(n,gamma)63Ni(t(1/2)=100+/-2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT=25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4+/-2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62<A<90 produced by the weak s process in massive stars.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 94
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 15783960
- Full Text :
- https://doi.org/10.1103/PhysRevLett.94.092504